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MUKAU FASTENERS, a prominent manufacturer and supplier located in Kinshasa, Congo, is dedicated to crafting top-notch ASTM A193 B8M Bolts that excel in tough industrial settings. These bolts, forged from AISI 316 stainless steel, boast remarkable resistance to corrosion, heat, and chemical exposure. Renowned for their strength and longevity, ASTM A193 B8M Bolts are perfect for high-pressure and high-temperature applications. MUKAU FASTENERS guarantees that each bolt adheres to stringent ASTM standards, providing dependable fastening solutions for industries like petrochemical, marine, construction, and power generation, both in Congo and around the globe.
ASTM A193 B8M Bolts are crafted from AISI 316 stainless steel, which includes 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, along with small amounts of manganese, silicon, and carbon. The molybdenum enhances resistance to pitting and crevice corrosion, particularly in environments rich in chlorides. These bolts have a minimum tensile strength of 75 ksi, along with impressive yield strength, elongation, and impact toughness. Their high ductility and resistance to oxidation make them ideal for high-temperature and corrosive conditions, ensuring reliable performance and long-lasting stability in various industrial applications.
| Element | B7 | B8 | B8M |
| Carbon | 0.37 – 0.49% | 0.08% max | 0.08% max |
| Manganese | 0.65 – 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.040% | 0.030% | 0.030% |
| Silicon | 0.15 – 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.75 – 1.20% | 18.0 – 20.0% | 16.0 – 18.0% |
| Nickel | 8.0 – 11.0% | 10.0 – 14.0% | |
| Molybdenum | 0.15 – 0.25% | 2.00 – 3.00% |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 – 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 – 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 – 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 – 1-1/2 | 90 | 50 | 30 | 45 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8M Bolt
|
IS
BS
ASTM
|
DIN, ISO, JIS, GB, IS, BS, ASTM |
M 02 to M 160
|
3 mm to 200 mm
|
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
ASTM A193 B8M Bolts find extensive use in industries that demand exceptional corrosion resistance and strength at elevated temperatures. They are commonly utilized in chemical plants, refineries, offshore structures, food processing facilities, and power generation systems. These bolts are also perfect for heat exchangers, pressure vessels, marine equipment, and pipelines that face saltwater and acidic conditions. Their outstanding resistance to oxidation and chloride stress corrosion cracking makes them well-suited for coastal and chemical environments. MUKAU FASTENERS provides ASTM A193 B8M Bolts that guarantee durability, ensuring they stand the test of time in challenging applications.
Mukau fasteners contain careful packages of ASTM A193 B8M bolts to ensure safe delivery and optimal quality. Each bolt is individually inspected and carefully wrapped to prevent damage during transport. We use durable protective coatings and fasteners to keep the bolt intact. Custom packaging is available to meet specific needs. Our commitment to quality extends through our packaging, ensuring that your fasteners arrive in perfect condition, ready for immediate use.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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